Function NormalizedAngleFrom

deps/tesseract/classify/fpoint.cpp:48–61

* Return the angle from Point1 to Point2 normalized to * lie in the range 0 to FullScale (where FullScale corresponds * to 2*pi or 360 degrees). * @param Point1 points to compute angle between * @param Point2 points to compute angle between * @param FullScale value to associate with 2*pi * @return none * @note Globals: none * @note Exceptions: none * @note History: Wed Mar 28 14:27:25 199

 * @note History: Wed Mar 28 14:27:25 1990, DSJ, Created.
 */
FLOAT32 NormalizedAngleFrom(FPOINT *Point1,
                            FPOINT *Point2,
                            FLOAT32 FullScale) {
  FLOAT32 Angle;
  FLOAT32 NumRadsInCircle = 2.0 * PI;

  Angle = AngleFrom (*Point1, *Point2);
  if (Angle < 0.0)
    Angle += NumRadsInCircle;
  Angle *= FullScale / NumRadsInCircle;
  if (Angle < 0.0 || Angle >= FullScale)
    Angle = 0.0;
  return (Angle);
}